How to Access Axios POST Parameters in PHP Using Different Methods?

Axios POST Parameters Not Accessible in PHP

In your code, you're sending a POST request using Axios with the "application/x-www-form-urlencoded" content type. However, you're encountering an issue where the POST data is not being populated into the $_POST or $_REQUEST arrays on the PHP side.

The root cause of this problem lies in the format of the POST data. PHP expects POST data to be in the "application/x-www-form-urlencoded" format, which is the default format for HTML form submissions. By default, Axios serializes JavaScript objects to JSON, which is not a supported data format for $_POST.

Solution: Using URLSearchParams or qs Library

To resolve this issue, you can use the following methods to encode the POST data in the correct format:

• Using URLSearchParams API (Browser only):

<code class="javascript">const params = new URLSearchParams();
params.append('param1', 'value1');
params.append('param2', 'value2');
axios.post('/foo', params);</code>

• Using qs Library (Node.js):

<code class="javascript">const qs = require('qs');
axios.post('/foo', qs.stringify({ 'bar': 123 }));</code>

Alternatively, you can modify PHP to handle JSON as POST data:

Refer to this answer for details on how to configure PHP to handle JSON as a data format for populating $_POST.

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